Table 1 Data collection schedule

Questionnaire

Income, employment, education, ethnicity, parity, home ownership, perceptions of home and neighbourhood quality, family dynamics, use of cleaning products in the home, smoking and alcohol consumption during pregnancy, supplements and medications taken during pregnancy, and plans and expectations for birth and feeding of baby

Anthropometric measurements

Parental height, weight, skinfolds and mid-arm circumference

Accelerometer

Physical activity of mother during pregnancy

Food diary

Parental dietary habits during pregnancy, including consumption of fats, sugar and salt (compared with Recommended Daily Amount [RDA] guidelines)

Umbilical cord blood

Immunological status of infant and antibodies from the mother

Postnatal Environment

Data

Home assessment

Hygiene, presence and extent of mould and/or damp, household hazards, safety features

Neighbourhood assessment

Air quality, accessibility of local facilities, availability of green space, walkability, proximity to major sources of noise, perceptions of local safety and crime

Noise meters

Noise levels in the home (parental bedroom)

Data Loggers

Temperature and humidity (parental bedroom and living room)